There are two types of font-family values:
* family-name: The name of a font-family, like "times", "courier", "arial", etc.
* generic-family: The name of a generic-family, like "serif", "sans-serif", "cursive", "fantasy", "monospace".
Note: Separate each value with a comma, and always offer a generic-family name as the last alternative.
Note: If a family-name contains white-space, it should be quoted. Single quotes must be used when using the "style" attribute in HTML.
Here is the list of font families commonly available on all systems.
Arial, Helvetica, sans-serif
'Times New Roman', Times, serif
'Courier New', Courier, monospace
Georgia, 'Times New Roman', Times, serif
Verdana, Arial, Helvetica, sans-serif
Geneva, Arial, Helvetica, sans-serif